Enantiomeric Separations in Capillary Electrophoresis Using 18‐Crown‐6‐tetracarboxylic Acid (18C6H4) as Buffer Additive
Enantiomeric Separations in Capillary Electrophoresis Using 18‐Crown‐6‐tetracarboxylic Acid (18C6H4) as Buffer Additive
复制标题
使用 18-冠-6-四甲酸 (18C6H4) 作为缓冲添加剂的毛细管电泳中的对映体分离
DOI:
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发表时间:
1998
期刊:
影响因子:
--
通讯作者:
P. Sandra
中科院分区:
文献类型:
--
作者:
K. Verleysen;J. vanDijck;M. Schelfaut;P. Sandra
An overview is presented of the applicability of the crown ether 18-crown-6-tetracarboxylic acid (18C6H4) as buffer additive in capillary electrophoresis (CE) for the separation of enantiomers. The chiral selector 18C6H4 is particularly useful for the separation of racemates having a primary amino function. Unfortunately, the crown ether is no longer commercially available. The synthesis and spectroscopic characterization are therefore described in detail. Moreover, a method is presented for the regeneration of the crown ether after CE application. Some new enantiomeric separations of amino acids i.e. NORLEU, ARG, GLU, m-TYR, and o-TYR are listed and the influence of the pH and temperature of the separation buffer is discussed. An intermediate in the synthetic pathway, namely 18-crown-6-tetracarboxamide, did not exhibit any enantioselectivity in CE.
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影响因子:
2
作者:
ARMSTRONG, DW;RUNDLETT, KL;CHEN, JR
通讯作者:
CHEN, JR
影响因子:
7.4
作者:
K. Gahm;A. Stalcup
通讯作者:
K. Gahm;A. Stalcup
影响因子:
7.4
作者:
STALCUP, AM;AGYEI, NM
通讯作者:
AGYEI, NM
影响因子:
4.1
作者:
ARMSTRONG, DW;GASPER, MP;RUNDLETT, KL
通讯作者:
RUNDLETT, KL